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<div class="title">kd_tree.hpp</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &quot;base_data_package.h&quot;</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;cmath&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;iterator&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;limits&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_s_p_h.html">SPH</a> </div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;{</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;    <span class="keyword">using</span> indexArr = std::vector&lt;size_t&gt;;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;    <span class="keyword">using</span> pointIndex = <span class="keyword">typename</span> std::pair&lt;Point, size_t&gt;;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;    <span class="keyword">using</span> pointVec = std::vector&lt;Point&gt;;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;    <span class="keyword">using</span> pointIndexArr = <span class="keyword">typename</span> std::vector&lt;pointIndex&gt;;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="class_s_p_h_1_1_k_d_node.html">   29</a></span>&#160;    <span class="keyword">class </span><a class="code" href="class_s_p_h_1_1_k_d_node.html">KDNode</a> </div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    {</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="class_s_p_h_1_1_k_d_node.html#a49fed5ac1ec3a0460033d34b4959b0c7">   35</a></span>&#160;        <span class="keyword">using</span> <a class="code" href="class_s_p_h_1_1_k_d_node.html#a49fed5ac1ec3a0460033d34b4959b0c7">KDNodePtr</a> = std::shared_ptr&lt;KDNode&gt;;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        <span class="keywordtype">size_t</span> index_;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;        Point x_;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;        <a class="code" href="class_s_p_h_1_1_k_d_node.html#a49fed5ac1ec3a0460033d34b4959b0c7">KDNodePtr</a> left_;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        <a class="code" href="class_s_p_h_1_1_k_d_node.html#a49fed5ac1ec3a0460033d34b4959b0c7">KDNodePtr</a> right_;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        <span class="keywordtype">bool</span> is_empty_;</div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="class_s_p_h_1_1_k_d_node.html#a99b4125ec4266ad84e5980c57eed2a58">   42</a></span>&#160;        <a class="code" href="class_s_p_h_1_1_k_d_node.html#a99b4125ec4266ad84e5980c57eed2a58">KDNode</a>(){is_empty_ = <span class="keyword">true</span>;};</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;        <a class="code" href="class_s_p_h_1_1_k_d_node.html#a99b4125ec4266ad84e5980c57eed2a58">KDNode</a>(<span class="keyword">const</span> Point &amp;, <span class="keyword">const</span> <span class="keywordtype">size_t</span> &amp;, <span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;,<span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;);</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        <a class="code" href="class_s_p_h_1_1_k_d_node.html#a99b4125ec4266ad84e5980c57eed2a58">KDNode</a>(<span class="keyword">const</span> pointIndex &amp;, <span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;, <span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;);</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        ~<a class="code" href="class_s_p_h_1_1_k_d_node.html">KDNode</a>(){};</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        <a class="code" href="class_real.html">Real</a> coord(<span class="keyword">const</span> <span class="keywordtype">size_t</span> &amp;);</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        <span class="comment">// conversions</span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        <span class="keywordtype">bool</span>  is_empty();</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        Point  position();</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <span class="keywordtype">size_t</span> index();</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        pointIndex posIndex();</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    };</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">   56</a></span>&#160;    <span class="keyword">using</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> = std::shared_ptr&lt;KDNode&gt;;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> NewKDNodePtr();</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="namespace_s_p_h.html#ab98734285b76b302c971297a09b2ae2a">dist</a>(<span class="keyword">const</span> Point &amp;, <span class="keyword">const</span> Point &amp;);</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="namespace_s_p_h.html#ab98734285b76b302c971297a09b2ae2a">dist</a>(<span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;, <span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;);</div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="class_s_p_h_1_1_index_comparer.html">   65</a></span>&#160;    <span class="keyword">class </span><a class="code" href="class_s_p_h_1_1_index_comparer.html">IndexComparer</a> </div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keywordtype">size_t</span> idx_;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        <span class="keyword">explicit</span> <a class="code" href="class_s_p_h_1_1_index_comparer.html">IndexComparer</a>(<span class="keywordtype">size_t</span> idx);</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">bool</span> compareIndex(<span class="keyword">const</span> std::pair&lt;Point, size_t&gt; &amp;, <span class="keyword">const</span> std::pair&lt;Point, size_t&gt; &amp; );</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    };</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespace_s_p_h.html#a2086ae46f2d2a338ebec271024978de9">sortOnIndex</a>(<span class="keyword">const</span> pointIndexArr::iterator &amp;, <span class="keyword">const</span> pointIndexArr::iterator &amp;, <span class="keywordtype">size_t</span> idx);</div><div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="class_s_p_h_1_1_k_d_tree.html">   81</a></span>&#160;    <span class="keyword">class </span><a class="code" href="class_s_p_h_1_1_k_d_tree.html">KDTree</a> </div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    {</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> root;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> leaf;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> makeTree(<span class="keyword">const</span> pointIndexArr::iterator &amp;begin,<span class="keyword">const</span> pointIndexArr::iterator &amp;end,</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                            <span class="keyword">const</span> <span class="keywordtype">size_t</span> &amp;length, <span class="keyword">const</span> <span class="keywordtype">size_t</span> &amp;level);</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <a class="code" href="class_s_p_h_1_1_k_d_tree.html">KDTree</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keyword">explicit</span> <a class="code" href="class_s_p_h_1_1_k_d_tree.html">KDTree</a>(pointVec point_array);</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="keyword">private</span>:</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;        <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> nearest_(<span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;branch,<span class="keyword">const</span> Point &amp;pt, <span class="keyword">const</span> <span class="keywordtype">size_t</span> &amp;level,<span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;best, <span class="keyword">const</span> Real &amp;best_dist);</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> nearest_(<span class="keyword">const</span> Point &amp;pt);</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        Point nearestPoint(<span class="keyword">const</span> Point &amp;pt);</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        <span class="keywordtype">size_t</span> nearestIndex(<span class="keyword">const</span> Point &amp;pt);</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        pointIndex nearestPointIndex(<span class="keyword">const</span> Point &amp;pt);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keyword">private</span>:</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        pointIndexArr neighborhood_(<span class="keyword">const</span> <a class="code" href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">KDNodePtr</a> &amp;branch, <span class="keyword">const</span> Point &amp;pt, <span class="keyword">const</span> Real &amp;rad,<span class="keyword">const</span> <span class="keywordtype">size_t</span> &amp;level);</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        pointIndexArr neighborhood(<span class="keyword">const</span> Point &amp;pt, <span class="keyword">const</span> Real &amp;rad);</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        pointVec neighborhoodPoints(<span class="keyword">const</span> Point &amp;pt, <span class="keyword">const</span> Real &amp;rad);</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        indexArr neighborhoodIndices(<span class="keyword">const</span> Point &amp;pt,<span class="keyword">const</span> Real &amp;rad);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    };</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;}</div><div class="ttc" id="namespace_s_p_h_html_ada5ff9a7f9988f8a907e2f57e7dae440"><div class="ttname"><a href="namespace_s_p_h.html#ada5ff9a7f9988f8a907e2f57e7dae440">SPH::KDNodePtr</a></div><div class="ttdeci">std::shared_ptr&lt; KDNode &gt; KDNodePtr</div><div class="ttdef"><b>Definition:</b> kd_tree.hpp:56</div></div>
<div class="ttc" id="namespace_s_p_h_html_ab98734285b76b302c971297a09b2ae2a"><div class="ttname"><a href="namespace_s_p_h.html#ab98734285b76b302c971297a09b2ae2a">SPH::dist</a></div><div class="ttdeci">double dist(const Point &amp;, const Point &amp;)</div></div>
<div class="ttc" id="class_s_p_h_1_1_k_d_node_html_a99b4125ec4266ad84e5980c57eed2a58"><div class="ttname"><a href="class_s_p_h_1_1_k_d_node.html#a99b4125ec4266ad84e5980c57eed2a58">SPH::KDNode::KDNode</a></div><div class="ttdeci">KDNode()</div><div class="ttdef"><b>Definition:</b> kd_tree.hpp:42</div></div>
<div class="ttc" id="class_s_p_h_1_1_k_d_node_html"><div class="ttname"><a href="class_s_p_h_1_1_k_d_node.html">SPH::KDNode</a></div><div class="ttdoc">Node for KDTree. </div><div class="ttdef"><b>Definition:</b> kd_tree.hpp:29</div></div>
<div class="ttc" id="namespace_s_p_h_html_a2086ae46f2d2a338ebec271024978de9"><div class="ttname"><a href="namespace_s_p_h.html#a2086ae46f2d2a338ebec271024978de9">SPH::sortOnIndex</a></div><div class="ttdeci">void sortOnIndex(const pointIndexArr::iterator &amp;begin, const pointIndexArr::iterator &amp;end, size_t idx)</div><div class="ttdoc">sorting on index. </div><div class="ttdef"><b>Definition:</b> kd_tree.cpp:85</div></div>
<div class="ttc" id="class_real_html"><div class="ttname"><a href="class_real.html">Real</a></div></div>
<div class="ttc" id="class_s_p_h_1_1_k_d_tree_html"><div class="ttname"><a href="class_s_p_h_1_1_k_d_tree.html">SPH::KDTree</a></div><div class="ttdef"><b>Definition:</b> kd_tree.hpp:81</div></div>
<div class="ttc" id="class_s_p_h_1_1_index_comparer_html"><div class="ttname"><a href="class_s_p_h_1_1_index_comparer.html">SPH::IndexComparer</a></div><div class="ttdoc">Compare for sorting. </div><div class="ttdef"><b>Definition:</b> kd_tree.hpp:65</div></div>
<div class="ttc" id="class_s_p_h_1_1_k_d_node_html_a49fed5ac1ec3a0460033d34b4959b0c7"><div class="ttname"><a href="class_s_p_h_1_1_k_d_node.html#a49fed5ac1ec3a0460033d34b4959b0c7">SPH::KDNode::KDNodePtr</a></div><div class="ttdeci">std::shared_ptr&lt; KDNode &gt; KDNodePtr</div><div class="ttdef"><b>Definition:</b> kd_tree.hpp:35</div></div>
<div class="ttc" id="namespace_s_p_h_html"><div class="ttname"><a href="namespace_s_p_h.html">SPH</a></div><div class="ttdef"><b>Definition:</b> base_body_supplementary.cpp:11</div></div>
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